Added 'output_dir' attribute, and 'output_dir' parameter to several method   signatures, and updated some docstrings to reflect it. Some comments added. Added 'announce()' and 'move_file()' methods.
Added 'output_dir' attribute, and 'output_dir' parameter to several method
  signatures, and updated some docstrings to reflect it.
Some comments added.
Added 'announce()' and 'move_file()' methods.

pypa/setuptools,pypa/setuptools,pypa/setuptools